Home / 155,717.89-214,890.63-84,097.92

Finding the Fourth Proportional to 155,717.89, 214,890.63 and 84,097.92

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Solution

The fourth proportional to 155,717.89, 214,890.63 and 84,097.92 is: 116,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,717.89 : 214,890.63 = 84,097.92 : x
  2. Step 2: Convert to fraction form
    155,717.89/214,890.63 = 84,097.92/x
  3. Step 3: Cross multiply
    155,717.89x = 214,890.63 × 84,097.92
  4. Step 4: Simplify right side
    155,717.89x = 18,071,854,590
  5. Step 5: Solve for x
    x = 18,071,854,590/155,717.89
  6. Step 6: Final answer
    x = 116,055.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.